31112032120211 has 8 divisors (see below), whose sum is σ = 37648173322080. Its totient is φ = 25098782214528.

The previous prime is 31112032120207. The next prime is 31112032120219. The reversal of 31112032120211 is 11202123021113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31112032120211 - 2² = 31112032120207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31112032120219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130722823916 + ... + 130722824153.

It is an arithmetic number, because the mean of its divisors is an integer number (4706021665260).

Almost surely, 2^{31112032120211} is an apocalyptic number.

31112032120211 is a deficient number, since it is larger than the sum of its proper divisors (6536141201869).

31112032120211 is a wasteful number, since it uses less digits than its factorization.

31112032120211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261445648093.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 31112032120211 its reverse (11202123021113), we get a palindrome (42314155141324).

The spelling of 31112032120211 in words is "thirty-one trillion, one hundred twelve billion, thirty-two million, one hundred twenty thousand, two hundred eleven".